Host the module on Drupal.org
Even if the module is too specific to our needs, we should simply host it on drupal.org, as it doesn't contain any sensitive company / customer information. We have plenty of other company specific "drowl_" modules, which are quite specific to our use cases and are not easily installable without setup knowledge.
Hosting Drupal modules on our own PUBLIC! Gitlab brings a few downsides, which are easily resolved on drupal.org:
- No automatic translatability
- No access to the drupal gitlab-ci